Chapter 2

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Microbiology
Chapter 2
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1

A BASE DISSOCIATED INTO A CATION AND HYDROXIDE IONS (OH-)

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2

I HAVE AN ATOM WHOSE 2ND SHELL IS COMPLETELY FULL. HOW MANY TOTAL ELECTRONS DOES IT HAVE?

10

3

MOLECULES ARE ALIVE

FALSE

4

ORGANIC COMPOUNDS ALWAYS CONTAIN WHAT 2 ELEMENTS?

CARBON AND HYDROGEN

5

WHAT ARE THE 4 MOST COMMON ELEMENTS IN LIVING ORGANISMS?

C.H.O.N.

CARBON

HYDROGEN

OXYGEN

NITROGEN

6

WHICH TYPE OF BOND SHARES ELECTRONS?

COVALENT

7

WHICH TYPE OF ORGANIC MOLECULE WOULD BIEBEROSE BE?

SUCROSE

8

ATOM-

SMALL UNITS OF MATTER

- THE ATOM CENTER IS CALLED A NUCLEUS . IT CONTAINS PROTONS (+) AND NEUTRONS (NEUTRAL)

-SURROUNDING THE NUCLEUS ARE ELECTRONS (-)

9

MOLECULE-

2 OR MORE ATOMS COMBINED

10

ATOMIC NUMBER-

# OF PROTONS

11

ATOMIC WEIGHT-

# OF PROTONS AND NEUTRONS

12

ELEMENTS-

ARE SPECIFIC GROUPS OF ATOMS THAT HAVE THE SAME NUMBER OF PROTONS

13

ISOTOPE-

ELEMENTS WITH DIFFERENT NUMBERS OF NEUTRONS

14

HYDROGEN, CARBON, NITROGEN, OXYGEN ARE THE MOST COMMON ELEMENTS IN LIVING ORGANISMS

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